Apparatus for boring bobbins.



ED AUG.11, 1913.

Patented Sept. 29, 1914.

4 SHBETSBHBET 1.

gvwenrozjl a aaleoizflewera afl'oznoq N. D-EMBRS. APPARATUS FOR BORING BOBBINS.

APPLIQATION FILED AUG.11, 1913.

1 1 1 2, 36 3. Patented Sept. 29, 1914.

4 SHEETS-SHEET 2.

Wifweoaeo ,r. M/% 33,

V attouwv,

N. DEMBRS.

APPARATUS FOR BORING BOBBINS.

APPLICATION FILED AUG. 11, 1913.

4 SHEETS-SHEET 3.

Patented Sept. 29, 1914.

aZeonDzzzem with-eases N. DEMERS.

APPARATUS FOR BORING BOBBINS.

APPLICATION FILED AUG. 11, 1913.

Patented Sept. 29, 1914.

4 SHEETS-SHEET 4.

Witweooeo of reference marked thereon,

NAPOLEON DEMEBS, 0F SHERIBROQKE, QUEBEC, CANADA.

APPARATUS FOR BORING ROBBINS.

Specification of Letters Patent.

Patented Sept. 29, 1914.

Application filed August 11, 1913. Serial No. 784,203.

To all whom it may concern:

Be it known that I, NAPOLEON DnMnRs, a subject of the King of England, residmg at Sherbrooke, in the Province of Quebec, 1n the Dominion of Canada, have invented certain new and useful Improvements in Apparatus for Boring Bobbins; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures which form. a part of this specification.

This invention relates to new and useful improvements in apparatus for boring bobbins and comprises various details of construction and combinations and arrange,

ments of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical central sectional;

View through the apparatus, parts being shown in side elevation. view of the machine. sectional view taken on Fig. 4 is a similar View of Fig. 3 and showing parts in different relative positions. Fig. 5 is a detail in elevation of one of the cam driving wheels, and Figs. 6 and 7 are detail views of parts of the apparatus.

Reference now being had to the details of Fig. 2 is a top plan 1 Fig. 3 is a vertical line 3-3 of Fig. 2.

taken on line the drawings by numeral, 1 designates the:

frame of the apparatus which preferably has a metallic top 2 and journaled in suit-j able bearings upon the cross-piece 3, shown? in Fig. 1 of the drawings,

is a driving shaft 3 4 which has keyed thereto a cam wheel 5,:

a detail of which is shown clearly in Fi 5 l %asbe noted that said shaft 4, the purpose of which of the drawings, and a cam 6 is also tened to will be hereinafter described. Other shafts, designated respectively by numerals 7 and 8, are journaled in suitable bearings 7 and 8 respectively, and to the shaft 7 is keyed a cam 9, while a similar cam 10 is keyed to the shaft 8.

A horizontally disposed beam 11, shown clearly in Fig. 2 of the drawings and forming a stationary part of the frame of the apparatus, has a series of springs 12 connected thereto, the other ends of the springs being connected to the eyes 13 which are fastened to the cross-piece 14, which latter has a series of apertures therein for the reception ofthe longitudinally movable bars 15, each of which has a socket member 16 with outwardly flaring curved fingers 17 fastened thereto, forming socket members to receive the contracted ends of the bobbins 18 to be bored. Said beam 11 is also provided with apertures for the reception of the bars 15, the latter being adapted to move freely through the same, while the portions of the bars which pass through'the cross-piece 14 are fixed thereto, causing the bars and the cross-piece to move together. A plate 19 is fastened to the cross-piece 14 and is provided with an elongated slot 20 through which a guide pin 21 carried by the beam 11 passes, serving as a means toguide the plate in its longitudinal movements. An anti-friction roller 22 is journaled upon the spindle 23 carried by said plate 19 and is adapted to be struck by the cam wheel 5 at each revolution of the latter and which will tend to impart a forward longitudinal movement to the plate 19 and also to the cross-piece 14 carrying the various bars fialving socket ends in which the bobbins are Upon reference to Fig. 2 of the drawin s, it will be noted that, when the'broken circumference of the ,cam wheel 5 comes opposite the anti-friction roller, the spring connecting said cross-piece will tend to return the latter to its normal position and with it the various socket members.

A second cross piece, designated by numeral 24, has a series of socket members 25 fastened thereto, each chambered andprovided with tapered wall, one of said socket members being shown in section in Fig. 2 of the drawings, and in which the enlarged end of the bobbin is adapted to be held. It will the socket member 25, illustrated in central section, is provided with an opening 26 through which the bit 27 carried by the stock 28 is adapted to pass, being driven by any suitable mechanism not shown. A cam -wheel 25 is fixed to the shaft 4 and is designed to contact with an antifriction wheel 24, journaled upon a projection of the cross-piece 24, and afiording means whereby the latter and the socket members thereon ma be moved forward simultaneously with the inner throw of the cross-piece 14 which carries the socket members engaging the contracted ends of the bobbins, the-springs 26", which are broken away, serving the same purpose as the springs 12 in returning the cross-piece 24 to its normal position after having been driven forward by the cam wheel 25.

A vertically and horizontally movable rack, designated by numeral 29, is adapted to rest upon the top bars 2 when at its lowest limit and is capable of being raised to the position shown in Fig. 3 of the drawings when 'thebobbins are adjusted in place to be bored, and plates 30 rest upon said rack 29 and are capable of a slight vertical adjustment through the medium of the adjusting screws 31 which are mounted in threaded apertures in said rack, while the upper contracted ends of the screws engage apertures in said plates 30, while the set screws 32 are mounted in the ends of said plates 30 and adapted to hold the adjusting screws 31 in different set positions.

Pivotally mounted upon the bracket arms 33 of the top 2 are the angle levers 34 in which are journaled anti-friction wheels 35 and 36 (see Fig. 7 of the drawings) whereit will be noted that there are two of said wheels 35 upon one arm and a single wheel upon the other arm, said single wheel being adapted to be actuated by one of the cams a each revolution of the shaft upon which it is mounted.

It will be noted upon reference to Fig. 1 that there are two of said angle levers similarly constructed and each being adapted to be actuated by a cam for the purpose of raising the rack bar from the position shown in Fig. 1 to the position illustrated in Figs. 3 and 4 of the drawings, which will bring the bobbins to be bored in alinement with the socket members 25. Springs 37 are fastened to the superstructure of the frame, as shown clearly in Figs. 3 and 4, and are adapted to frictionally engage the bobbins when the latter are raised to position where they are held while being bored.

Mounted upon a shaft 38 journaled in the frame is a disk 39 fixed thereto and having an arm 40 secured thereto, a detail of which arm is clearly illustrated in Fig. 6 of the drawings, and which has a widened end 41 adapted to contact-with the end of a screw 42 which is adjustably held in a threaded aperture in a bracket arm 43 fastened to and depending from the rack 29. A cam arm, designated by numeral 44, is fastened to the disk 39 and its bent end is disposed in the path of the arm 45 which is fastened to the disk 46 rotating with the shaft 4. A second bracket arm, designated by numeral 47, is

, fastened to the rack 29 and depending therefrom in the path of the cam 6 which, when the latter contacts with said bracket arm 47, is adapted to impart a longitudlnal movement to the rack 29 after said rack has been driven forward by the arm 45 coming in contact with the arms 44 fixed to the disk 39.

The plates 30 are provided with pins 48, shown in top plan view in Fi 2 and in elevation in Figs. 1, 3 and 4, an adjustably mounted upon said plates 30 are the plates 49 which are slotted and held in adjustedpositions by means of the screws 50, and plus 51 project from said plates 49 and cooperate with the pins 48 to hold the contracted ends of the bobbins.

Tracks 53, parallel to each' other and shown in top plan view in Fig. 2 of the drawings and edge view in Figs. 1, 3 and 4, are supported by the bracket arms 54 and are adapted to receive the bobbins as they are released one at a time from the series after they have been bored and the rack has been moved forward and depressed.

The operation of my invention will be readily understood and is as follows The bobbins to be bored are placed upon the upper surfaces of the plates 30 with their corresponding contracted ends for engagement with the socket members having the fingers 17 thereon at their opposite ends for engagement with the socket members 25. The means for actuating the bits is similar to the construction which I have shown in my patent No. 1,031,108 issued July 2, 1912, hence further description or illustration of this mechanism is not deemed necessary in the present case. Motion is imparted to the driving shaft 4 and, when the cams 9 and 10 come in contact with the anti-friction rollers 36, the levers carrying the same will be tilted and the anti-friction rollers 35 will contact with the under surface of the rack and cause the same and the plates 30 thereon to be elevated from the position shownin Fig. 1 to the position shown in Figs. 3 and 4 of the drawings, which will bring the bobbins in alinement with the two oppositely disposed sets of socket members 16 and 25. After the rack has been lifted to its upper limit and held in such position by the anti-friction rollers 35, the cam wheels 5 and 25 will have caused the socket members to be thrown toward each other to grip the opposite ends of the bobbins to hold the same securely, after which the bits are actuated in any suitable manner to bore the desired sizes of holes in the various bobbins. This having been accomplished, the broken away spaces in the cam wheels 5 and 25 will have-come opposite the anti-friction rollers 22 and 24 respectively, allowing the springs to throw the socket members at the opposite ends of the bobbins away from the latter to release the same for a moment while the rack is being driven forward from the position shown in Figs. 1 and 3 shaft 38 to rock and the arm 40 thereon to contact with'the adjusting screw 42 upon the bracket 43. It will be understood thatthe rack is supported in its highest position by the anti-friction rollers 35 while it,

is being advanced forward. Immediately after the rack has been advanced to the position shown in Fig.4 of the drawings, the

broken away spaces in the cam wheels 5' and will have passed by the anti-friction rollers 22 and 24 respectively and will have come in contact with the same and again cause the socket members to be driven toward each other to grip" all the bobbins except the oneat the extreme left to hold the same in elevated positions. As soon as the cams 9 and 10 pass by the anti-friction rollers 36, the rack lowers by gravity, said bobbin at the extreme left being deposited upon the track 53 down which it rolls and which track projects underneath the bobbin when the rack is at its farthest forward limit, while the other bobbins will be held in their elevated positions. As the rack lowers free from the bobbins, it will be given a longitudinal movement to the right through the mediumof the cam 6 which strikes the bracket member .47 driving the rack to the position shown in Fig. l of the drawings so that a new bobbin may be inserted between the pins at the extreme right end of the rack. A new bobbin to be bored having been placedupon the rack at the extreme right as described, the cam wheels 9 and 6 will have again caused the angle levers to be rocked and the rack elevated so that the opposite ends of the bobbins will be in alinement with the different socket members, after which the cammembers 5 and 25 will have moved the eration may be continued automatically, the

various bobbins to be bored being singly placedin any suitable manner between the pairs of pins at the extreme right end of the rack when the latter is thrown in proper position to receive the same.

By the provision of an apparatus embodying the features of my invention, it will be noted that a machine is provided whereby parts of the mechanism are so arranged as to act at predetermined moments to cause the bobbins to\be gripped, bored and advanced to proper positions to complete the bobbin and automatically deposit the same, while the bobbins before being bored may be automatically or otherwise fed upon the rack in readiness to be completed.

What I claim to be new is 1. An apparatus for boring bobbins comprising a frame, a movable rack, plates upon the latter and means upon the plates for holding bobbins, oppositely disposed movable socket members, pivotally mounted angle levers, antifriction rollers journaled upon said levers, a roller upon each lever engaging underneath said rack, rotatable cams adapted to contact with corresponding antifriction rollers upon said levers to cause the same to tilt to raise the rack to'bring spindles, designed to rest upon the plates, into alinement with said socket members, cam-actuated mechanism for moving the op positely disposed socket members toward each other to engage and hold the spindles while being bored, springs for releasing the socket members after the holes are bored, means for imparting a longitudinal movement to the rack after the spindles are released and while the rack is in an elevated position, means for depositing a single spindle as the rack lowers, while the other spindles are held suspended by the socket members, and means for returning the rack to its normal position.

2. An apparatus for boring bobbins comprising a'frame, a movable rack, plates upon the latter and means upon the plates for holding bobbins, spring-pressed crosspieces, socket members mounted thereon and arranged opposite each other, antifriction wheels j ournaled upon projections upon said crosspieces, cam wheels adapted to contact with the antifriction wheels upon said projections and to move the sockets into contact with the opposite ends of spindles previously placed upon the plates and raised to positions in alinement with the socket memers, means for imparting .a longitudinal movement to the rack after the sockets are released from the spindles, tracks upon which a single spindle is adapted to be de positedas the rack lowers while the other spindles are held in suspension, and means for returning the rack to its normal position.

3. An apparatus for boring bobbins com prising a frame, a movable rack, plates upon the latter and means upon the plates for holding bobbins, crosspieces, springs connected thereto, socket members fastenedto said crosspieces, a stationary beam'to which the springs secured to one of said crosspieces each of said projections, cam wheels adapted to contact with said antifriction wheels upon the projections, provided with offsets and designed to move the socket members toward each other to engage the opposite ends of the spindles previously raised by the plates into alinement with said socket members, means for imparting a longitudinal movement to the rack when in an elevated position, in-' clined tracks over which a single spindle upon the rack is positioned when the rack is given a longitudinal movement to its limit in onedirection, and means for returning the rack to its normal position after it has lowered.

4:. An apparatus for boring bobbins comprising a frame, a movable rack, plates upon the latter, thumb screws for adjusting the plates, fingers upon the latter between which spindles are adapted to be held, oppositely disposed movable socket members, pivotally mounted angle levers, antifriction rollers journaled upon said levers, a roller'upon each lever engaging underneath said rack, rotatable cams adapted to contact with corresponding antifriction rollers upon said levers to cause the same to tilt to bring the spindles into alinement with said socket members, cam-actuated mechanism for moving the oppositely disposed socket members toward each other to engage and hold the spindles while being bored, springs for releasing the socket members after the holes are bored, a downwardly extending projection upon the rack, a rotatable disk, means for operating the same, an arm secured to the disk, a set screw 'upon said projection against which the arm is adapted to contact, and means for returning the rack to its normal position.

5. An apparatus for boring bobbins comprising a frame, a movable rack, plates upon the latter, thumb screws for adjusting the plates, fingers upon the latter between which spindles are adapted to be held, oppositely disposed movable socket members, pivotally mounted angle levers, antifriction rollers journaled upon said levers, a roller upon each lever engaging underneath said rack, rotatable cams adapted to contact with corresponding antifriction rollers upon said levers to cause the same to tilt to raise the rack to bring the spindles into alinement with said socket members, can'l-actuated mechanism for moving the oppositely disposed socket members toward each other to engage and hold the spindles while being bored, springs for releasing the socket members after the holes are bored, a downwardly extending projection upon the rack, a rotatable disk, means for operating the same, an arm secured to the disk, a set screw upon said projection against which the arm 15 adapted to contact, a bar projecting from the rack, and a cam for engagement with said bar to return the rack to its normal position.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

NAPOLEON DEMERS.

Witnesses ALEXINA JONEAS, MARGUEBITE MILTON. 

